Accessing a (new-style, public) Google sheet as JSON

Question

How can I access the contents of a (new-style) Google sheet a JSON? My aim is to access the values from JavaScript, so I need to be able to download the JSON via HTTP.

Answer 1

Here is the solution

1. Note your sheet id in the document url (don't use the published url to find the id!)
2. Publish your sheet, just as html page
3. Use the id from step 1,
4. and put it in this url https://spreadsheets.google.com/feeds/cells/{id}/1/public/full?alt=json

The /1 indicates the first sheet in your document